Sealing ring and floor drain core with same

Abstract

The utility model provides a sealing ring and a floor drain core with the sealing ring, and belongs to the field of drainage. The sealing ring comprises an annular body, the outer wall of the body extends outwards to form a first annular sealing part and a second annular sealing part, the second sealing part is located below the first sealing part, an annular connecting gap is formed between the first sealing part and the second sealing part, the first sealing part is provided with a first sealing face, and the second sealing part is provided with a second sealing face. When a medium acts on the first sealing part in the connecting gap, the first sealing face and the corresponding connecting face tend to be tightly attached. The floor drain core with the sealing ring is matched with the sealing ring to form a good sealing effect. According to the sealing ring and the floor drain core with the sealing ring, the sealing performance is optimized, and the sealing ring and the floor drain core have good sealing and blocking effects on medium backflow.

Description

Technical Field

[0001] This utility model belongs to the field of drainage and relates to a sealing ring and a drain core having the same. Background Technology

[0002] The drain core is an important component of the drainage system. Sewage flows into the drain panel and finally flows into the sewer through the drain core. During the process, the drain core opens a one-way valve to discharge sewage and then resets to seal. The seal is generally achieved by a sealing ring. Existing patent technology describes a sealing ring with a sealing part, the bottom surface of which is the sealing surface. There is a hollow gap between the sealing part and the sealing ring. The sealing ring also has a ring-shaped connecting part three, which connects the sealing part and the sealing ring. The inner end of the sealing part is connected to the connecting part three, and the outer end of the sealing part is a deformable end. The cross-section of the connecting part three and the sealing part together form an L-shape, and the connecting part three is located on the sealing ring near the inner edge. The hollowed-out gap in the aforementioned sealing ring has multiple advantages. First, it reduces material usage and lowers costs. Second, the hollowed-out gap provides sufficient deformation allowance for the sealing part. When the sealing part is subjected to external force, the presence of the hollowed-out gap causes the sealing part to deform to a certain extent. The top of the outer end of the sealing part is a hollowed-out area, and the deformed end can deform and tilt upwards, causing the other end of the sealing part to be pressed down, thereby enhancing the sealing performance.

[0003] Furthermore, the aforementioned patent applicant also disclosed a sealing structure, including an outer shell, an inner cylinder, and a sealing ring. The inner cylinder is connected to the outer shell and has a connecting part 1 and a connecting part 2 connected together. The width of the connecting part 2 is greater than the width of the connecting part 1. The sealing ring has a sealing part and has communicating grooves 1 and 2. The width of the groove 2 is greater than the width of the groove 1. The connecting part 2 is tightly fitted with the groove 1 and the groove 2. There is a hollow gap between the sealing part and the sealing ring. According to its description, the sealing part and the connecting part 3 are connected to form an L-shaped cross-section. The top of the outer end of the sealing part is a hollow area, and the deformable end can deform and tilt upwards, causing the other end of the sealing part to be pressed down, thereby enhancing the sealing performance. This is suitable for a scheme in which the unidirectional inner core and the sealing ring adopt a beveled seal, that is, the contact surface on the unidirectional inner core has a slope, and the slope causes the sealing part on the sealing ring to deform upwards and downwards.

[0004] The two patents mentioned above indicate that the sealing part of the sealing ring is applicable to both flat and inclined surfaces on the one-way flap. However, according to the attached drawings in the specification, the sealing part has almost no downward pressure effect when the surface is flat, and the technical effect is rather far-fetched. When the surface is inclined, although the sealing part has a certain downward pressure effect, the sealing path is singular. When odor or sewage flows back, it can easily enter directly through the gap between the sealing part and the one-way flap, and the one-way flap is easy to open, causing backflow.

[0005] This application is submitted to address the aforementioned issues. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in the prior art by providing a sealing ring and a drain core having the same. This sealing ring and drain core optimize sealing performance and provide better sealing and blocking effect against backflow of media, thus solving the problems of poor backflow prevention and sealing performance of existing sealing rings.

[0007] The objective of this utility model can be achieved through the following technical solution: a sealing ring, comprising an annular body, characterized in that the outer wall of the body extends outwardly with an annular sealing part one and a sealing part two, the sealing part two being located below the sealing part one and having an annular connecting gap between the sealing part one and the sealing part two, the sealing part one having a sealing surface one, and the sealing part two having a sealing surface two, when the medium acts on the sealing part one within the connecting gap, the sealing surface one tends to adhere tightly to the corresponding contact surface.

[0008] This sealing ring can be applied to the one-way flap of a drain core in a drainage system. There are various ways to connect the one-way flap to the drain core housing; it can be reset via magnetic attraction and repulsion, or via a spring. Specific structures are not detailed here, as they are existing technologies. When the one-way flap closes, this sealing ring provides a seal. First, the gas or liquid medium acts on sealing part two, which already achieves good sealing performance through sealing surface two—this is the first layer of sealing. If medium continues to pass through sealing part two, it will enter the connection gap. The medium will then act on sealing part one, and sealing surface one will abut against the corresponding contact surface on the drain core for sealing. Under the action of the medium, the outer end of sealing part one tends to open outwards, causing sealing surface one to expand and achieve a tighter seal with the contact surface. Therefore, the medium cannot break through sealing surface one and flow back. This sealing ring achieves a double seal through sealing part one and sealing part two, resulting in a significant sealing effect and excellent blocking effect against backflow and odors.

[0009] In the aforementioned sealing ring, the bottom of the sealing part two has a sealing surface three. When the medium exerts force on the sealing part two within the connection gap, the sealing surface three tends to adhere tightly to the corresponding contact surface.

[0010] The design of the connection gap not only achieves the advanced function of the first sealing surface, but also allows the medium to act on the second sealing part to press down on the third sealing surface, thereby forming a third seal at the bottom of the sealing ring. The connection gap achieves the upward push of the first sealing part and the downward pressure of the second sealing part, which is a clever structural design.

[0011] In the aforementioned sealing ring, the inner hole of the body is flared from bottom to top, and the inner wall of the body and the sealing surface form a V-shape.

[0012] The inner hole of the main body is inclined. This shape serves two purposes: first, it enables the main body to cooperate with the one-way flap in the drain core; second, it creates an inclination. When the medium enters through the sealing surface three, due to the design of the inclined angle of the inner hole of the main body, the medium will exert an upward force on the sealing surface three, thereby compressing the inner wall of the main body and preventing medium leakage, thus playing a further safety role.

[0013] In the aforementioned sealing ring, the sealing surface is an inclined surface and the inclination direction is opposite to the inclination direction of the inner hole of the body.

[0014] The two inclined surfaces are arranged in a figure-eight pattern. This structure allows the medium to exert bidirectional pressure on the sealing surface and the inner wall of the body when the medium acts in the connection gap.

[0015] In the aforementioned sealing ring, the width of sealing part one is smaller than the width of sealing part two.

[0016] A shorter sealing section width allows the sealing section to withstand better stress when the medium is applied.

[0017] In the aforementioned sealing ring, the sealing ring is made of rubber material.

[0018] A drain core with the aforementioned sealing ring includes a housing and a one-way flap, wherein the one-way flap is movably connected to the housing and can be opened or closed. The sealing ring is fixed on the one-way flap, and the bottom of the housing has a contact surface corresponding to the sealing surface. When the medium acts on the sealing part within the connection gap, the sealing surface adheres to the contact surface.

[0019] There are several ways to connect the one-way flap to the housing. The one-way flap can open and close by moving up and down, or it can be hinged and open from one side. The sealing ring is fixed to the one-way flap. When the one-way flap is closed, the sealing ring functions, and the specific principle has been explained in detail above. The contact surface one corresponds to the sealing surface one. When the sealing part one expands outward under the action of the medium, the sealing surface one and the contact surface one come into close contact to achieve further sealing.

[0020] In the aforementioned drain core, the bottom of the housing has a second contact surface, which can form a seal with the second sealing surface.

[0021] The second contact surface and the second sealing surface are corresponding, and the two are fitted together to achieve a seal.

[0022] In the aforementioned drain core, the one-way lobe has a contact surface three, and the sealing surface three can form a seal with the contact surface three.

[0023] The contact surface three corresponds to the sealing surface three, and the two fit together to achieve a seal.

[0024] In the aforementioned drain core, the one-way lobe has an embedded groove with an annular V-shaped structure, and the inner hole of the body cooperates with the embedded groove.

[0025] The shape of the embedded groove matches the shape of the inner hole of the body. The V-shaped structure realizes the fitting structure between the sealing ring and the one-way flap. The V-shaped fitting structure can prevent the sealing ring from detaching from the one-way flap.

[0026] Compared with existing technologies, this sealing ring has the following advantages:

[0027] 1. This sealing ring achieves double sealing through sealing part one and sealing part two, with a significant sealing effect and excellent blocking effect against backflow and odor.

[0028] 2. The connection gap in this sealing ring allows the sealing part one to expand outward for further sealing, while the sealing part two also applies downward pressure to the sealing surface three, thus forming a third seal at the bottom of the sealing ring. The ingenious structural design creates a sealing effect where the greater the external force, the better the sealing effect.

[0029] 3. The V-shaped structure of the inner wall of the main body and the sealing surface three in this sealing ring creates pressure on the sealing surface three, thereby improving the sealing performance of the sealing surface three.

[0030] 4. This sealing ring achieves triple sealing through sealing surface one, sealing surface two, and sealing surface three, and interacts with each other through the connection gap and each inclined surface, thereby greatly enhancing the sealing performance and reducing backflow and odor. Attached Figure Description

[0031] Figure 1 This is a cross-sectional view of the drain core with this sealing ring and its one-way flap closure.

[0032] Figure 2 This is a cross-sectional view of the drain core with this sealing ring and its one-way flap opening.

[0033] Figure 3 yes Figure 1 Enlarged view of the structure of region A in the middle.

[0034] List of reference numerals

[0035] In the diagram, 1 represents the main body;

[0036] 2. Sealing part one;

[0037] 2a. Sealing surface one;

[0038] 3. Sealing part two;

[0039] 3a. Sealing surface two;

[0040] 3b. Sealing surface three;

[0041] 34. Connection gap;

[0042] 4. Shell;

[0043] 4a. Intersection surface one;

[0044] 4b. Intersection surface two;

[0045] 5. One-way lobe;

[0046] 5a. Intersection surface three;

[0047] 5b. Embedded slot. Detailed Implementation

[0048] like Figures 1 to 3 As shown, this sealing ring is made of rubber material and includes an annular body 1. Annular sealing portions 2 and 3 extend outward from the outer wall of the body 1. Sealing portion 3 is located below sealing portion 2, and an annular connecting gap 34 exists between sealing portions 2 and 3. Sealing portion 2 has a sealing surface 2a, and sealing portion 3 has a sealing surface 3a. When the medium acts on sealing portion 2 within the connecting gap 34, sealing surface 2a tends to adhere tightly to the corresponding contact surface. This sealing ring can be applied to the one-way flap 5 of a drain core in a drainage system. There are various ways to connect the one-way flap 5 to the drain core housing 4; resetting can be achieved through magnetic attraction and repulsion, or through a spring. Specific structures are not detailed here, as they are existing technologies. The one-way flap 5 closes, and this sealing ring performs its sealing function. First, the gas or liquid medium acts on the sealing part 2 3. The sealing part 2 3 already achieves good sealing performance through the sealing surface 2 3a, which is the first seal. If the medium still passes through the sealing part 2 3, it will enter the connecting gap 34. The medium will act on the sealing part 1 2, and the sealing surface 2a will abut against the corresponding contact surface on the drain core for sealing. Under the action of the medium, the outer end of the sealing part 1 2 has a tendency to open outward, making the sealing surface 2a expand outward and achieve a tighter seal with the contact surface. Therefore, the medium cannot break through the sealing surface 2a and flow back. This sealing ring achieves a double seal through the sealing part 1 2 and the sealing part 2 3, with a significant sealing effect and excellent blocking effect against backflow and odor.

[0049] The bottom of the sealing part 2 3 has a sealing surface 3b. When the medium exerts force on the sealing part 2 3 within the connecting gap 34, the sealing surface 3b tends to adhere tightly to the corresponding contact surface. The design of the connecting gap 34 not only achieves the advanced function of the sealing surface 2a, but also allows the medium to exert downward pressure on the sealing surface 3b within the sealing part 2 3, thus forming a third seal at the bottom of the sealing ring. The connecting gap 34 achieves the upward pushing of the sealing part 2 and the downward pressing of the sealing part 2 3, demonstrating a clever structural design. The inner hole of the body 1 is flared from bottom to top, and the inner wall of the body 1 forms a V-shape with the sealing surface 3b. That is, the inner hole of the body 1 is inclined. This shape serves two purposes: firstly, it enables the body 1 to cooperate with the one-way flap 5 in the drain core; secondly, it creates an inclination. When the medium enters through the sealing surface 3b, due to the inclination angle of the inner hole of the body 1, the medium exerts an upward force on the sealing surface 3b, thereby compressing the inner wall of the body 1 and preventing medium leakage, thus providing a further safety function. Sealing surface 2a is inclined, and its inclination direction is opposite to that of the inner bore of body 1. The two inclined surfaces are arranged in a V-shape, which allows the medium to exert bidirectional pressure on sealing surface 2a and the inner bore wall of body 1 when the connecting gap 34 is in action. The width of sealing part 2 is smaller than the width of sealing part 3. The shorter width of sealing part 2 allows it to withstand better force when the medium is in action.

[0050] The drain core with the aforementioned sealing ring includes a housing 4 and a one-way flap 5. The one-way flap 5 is movably connected to the housing 4 and can open or close. The sealing ring is fixed to the one-way flap 5. The bottom of the housing 4 has a contact surface 4a corresponding to the sealing surface 2a. When the medium acts on the sealing part 2 within the connection gap 34, the sealing surface 2a presses against the contact surface 4a. There are various ways to connect the one-way flap 5 and the housing 4. The one-way flap 5 can open and close by moving up and down, or it can be hinged and open on one side. The sealing ring is fixed to the one-way flap 5. When the one-way flap 5 is closed, the sealing ring functions. The specific principle has been explained in detail above. The contact surface 4a corresponds to the sealing surface 2a. When the sealing part 2 expands outward under the action of the medium, the sealing surface 2a presses against the contact surface 4a to achieve further sealing. The bottom of the housing 4 has a second contact surface 4b, which can form a seal with the second sealing surface 3a. The contact surface 4b and the sealing surface 3a correspond to each other, and their fit together achieves a seal. The one-way lobe 5 has a contact surface 5a, and the sealing surface 3b can form a seal with the contact surface 5a. The contact surface 5a and the sealing surface 3b correspond to each other, and their fit together achieves a seal. The one-way lobe 5 has an annular V-shaped insertion groove 5b, and the inner hole of the body 1 mates with the insertion groove 5b. The shape of the insertion groove 5b matches the shape of the inner hole of the body 1. The V-shaped structure achieves the fitting structure between the sealing ring and the one-way lobe 5, and this V-shaped fitting structure prevents the sealing ring from detaching from the one-way lobe 5.

[0051] Details of the structure, specific component dimensions and principles not mentioned in this application are all common knowledge or can be derived by those skilled in the art through simple selection, and will not be elaborated upon.

[0052] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A seal ring comprising a body in the form of a ring, characterised in that, The outer wall of the body extends outwardly a sealing part one and a sealing part two in a circular ring shape, the sealing part two is below the sealing part one and has a connecting gap in a circular ring shape between the sealing part one and the sealing part two, the sealing part one has a sealing surface one on it, the sealing part two has a sealing surface two on it, when the medium acts on the sealing part one in the connecting gap, the sealing surface one has a tendency to tightly contact with a corresponding interface surface.

2. The seal ring of claim 1, wherein The bottom of the sealing part two has a sealing surface three, when the medium acts on the sealing part two in the connecting gap, the sealing surface three has a tendency to tightly contact with a corresponding interface surface.

3. The seal ring of claim 2, wherein, The inner hole of the body is flared from bottom to top, the inner wall of the body and the sealing surface three form a V shape.

4. The seal ring of claim 2, wherein The sealing surface one is an inclined surface and the inclined direction is opposite to the inclined direction of the inner hole of the body.

5. The seal ring of claim 1, wherein The width of the sealing part one is smaller than the width of the sealing part two.

6. The seal ring of claim 1, wherein The sealing ring is made of rubber material.

7. The floor drain core having the sealing ring according to any one of claims 3 to 6, comprising a housing and a one-way flap, the one-way flap being movably connected to the housing, the one-way flap being capable of being opened or closed, characterized in that, The sealing ring is fixed on the one-way valve, the bottom of the shell has an interface surface one corresponding to the sealing surface one, when the medium acts on the sealing part one in the connecting gap, the sealing surface one tightly contacts with the interface surface one.

8. The floor drain core of claim 7, wherein, The bottom of the shell has an interface surface two, which can form a seal with the sealing surface two.

9. The floor drain core of claim 7, wherein, The one-way valve has an interface surface three, which can form a seal with the sealing surface three.

10. The floor drain core of claim 7, wherein, The one-way valve has an embedded groove in a ring V shape structure, the inner hole of the body cooperates with the embedded groove.

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